(Brit) a member of the teaching staff at a university or college, esp at Oxford or Cambridge
2.
the head of a student dormitory at certain Canadian universities and colleges
3.
a Spanish gentleman or nobleman
4.
(in the Mafia) the head of a family
[C17: ultimately from Latin dominus lord]
Don1 (dɒn, Spanish don)
—n
a Spanish title equivalent to Mr: placed before a name to indicate respect
[C16: via Spanish, from Latin dominus lord; see don²]
Don2 (dɒn)
—n
1.
a river rising in W Russia, southeast of Tula and flowing generally south, to the Sea of Azov: linked by canal to the River Volga. Length: 1870 km (1162 miles)
2.
a river in NE Scotland, rising in the Cairngorm Mountains and flowing east to the North Sea. Length: 100 km (62 miles)
3.
a river in N central England, rising in S Yorkshire and flowing northeast to the Humber. Length: about 96 km (60 miles)
1523, from Sp. or Port. don, title of respect, from L. dominus "lord, master." The university sense is c.1660, originally student slang; underworld sense is 1952, from It. don, from L.L. domnus, from L. dominus (see domain). Don Juan "philanderer" is from the legendary dissolute
Sp. nobleman dramatized by Gabriel Tellez in "Convivado de Piedra" and popularized in Eng. by Lord Byron. The fem. form is Dona (Sp./Port.), Donna (It.).
don
early 14c. contraction of do on (see doff). "After 1650 retained in popular use only in north. dialect; as a literary archaism it has become very frequent in 19th c." [OED]. Related: Donned; donning.